I asked how long he was staying, but he fudged the answer.

我问他要待多久，但他含糊其辞。

《牛津词典》

He has stayed with us so long he seems to have become a permanent fixture.

他在我们这里待了很久，好像成了我们的固定成员。

《牛津词典》

Do you know how long he has lived here?

你知道他在这里住了多长时间了吗？

youdao

It was a cancer. President Cleveland asked how long he could wait to have the cancer removed.

VOA: special.2010.06.17

And we will then get over to here, where he's sitting on the tonic chord, and we want to see how long he's going to hold this tonic chord. Okay?

接着再到这里来，他停在了主音和弦上，然后我们想看看他会在主音和弦上保持多久，好吧？

耶鲁公开课 - 聆听音乐课程节选

And you could never imagine that he would be somebody that people would listen to on the radio, hour after hour, because that's how long he talked; or that when Stauffenberg tries to kill him in 1944 the Germans would pour out of the-- into the street to thank god for saving the Fuhrer.

你根本就无法想像人们会在,收音机上听他讲话,听好几个小时,因为他讲话就讲那么长时间,或者在1944年,史陶芬博格想要刺杀他的时候德国人会冲到,到大街上感谢上帝拯救他们的元首

耶鲁公开课 - 1871年后的法国课程节选

But how long he'll be able to protect it from the knives now drawn is questionable.

FORBES: Dollar Diplomacy

As long he does not have a French client, le fisc will leave him alone.

ECONOMIST: Today's global businesses have created a new kind of expat

The expression on his face was vacant, stunned with sorrow, but before long he was smiling.

NEWYORKER: Mr. Bones